Its design is based on the internal structure of the fruit, making it large duration life
American researchers from Stanford University created an electrode that resembles the internal structure of a pomegranate and could extend its life battery gadgets and other small devices.
«While there are still some challenges that we are called upon to solve, yet this particular plan brings us closer to creating powerful and at the same time smaller and lighter batteries for devices like smartphones, tablets and electric cars"Explains the professor and head of the study Yu Kui.
«From experiments it appeared that the anode electrode inspired by pomegranate is capable of operating at 97% even after 1.000 charging-discharge cycles, making it suitable for commercialization"The expert says.
Battery in ... "clusters"
The anode or negative electrode is the point where energy is stored when charging the battery. A silicon anode, according to the scientists, is capable of storing up to 10 times more energy charge compared to a graphite anode, in today's batteries lithium-ion.
However, the silicon anode is more brittle than the graphite one, causing it to break during charging while appearing to react with the battery electrolytes. To address the problem, the team by Dr. Cui, replaced the silicon anode with clusters of silicon nanowires, which could resemble pomegranate pimples. These clusters are enclosed in a protective cover within which the nanowires have the space to contract and expand when they receive an electrical charge.
Interesting findings are published in the "Nature Nanotechnology».
Source: tovima.gr
